<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>管理员登录</title>
    <style>
        body {
            background: url('https://cdn.pixabay.com/photo/2021/03/04/11/37/coast-6067736_960_720.jpg') no-repeat;
            background-size: 100% 130%;
        }

        #login_box {
            width: 20%;
            height: 400px;
            background-color: #00000060;
            margin: auto;
            margin-top: 10%;
            text-align: center;
            border-radius: 10px;
            padding: 50px 50px;
        }

        h2 {
            color: #ffffff90;
            margin-top: 5%;
        }

        #input-box {
            margin-top: 5%;
        }

        span {
            color: #fff;
        }

        input {
            border: 0;
            width: 60%;
            font-size: 15px;
            color: #fff;
            background: transparent;
            border-bottom: 2px solid #fff;
            padding: 5px 10px;
            outline: none;
            margin-top: 10px;
        }

        button {
            margin-top: 50px;
            width: 60%;
            height: 30px;
            border-radius: 10px;
            border: 0;
            color: #fff;
            text-align: center;
            line-height: 30px;
            font-size: 15px;
            background-image: linear-gradient(to right, #30cfd0, #330867);
        }

        #sign_up {
            margin-top: 45%;
            margin-left: 60%;
        }
        a {
            color: #b94648;
        }
    </style>
</head>

<body>
<div id="login_box">
    <h2>管理员登录</h2>
    <form action="/dbaLogin">
        <div id="input_box">
            <input type="text" placeholder="请输入管理员账号" name="num">
        </div>
        <div class="input_box">
            <input type="password" placeholder="请输入密码" name="pwd">
        </div>
        <button class="btn" type="submit">登录</button><br>
    </form>
    <button class="btn"  onclick="window.location.href='http://localhost:8080'">返回</button><br>
</div>
</body>
</html>